参数资料
型号: MAX16046ATN+
厂商: Maxim Integrated Products
文件页数: 59/70页
文件大小: 0K
描述: IC EE-PROG SYS MGR 12CH 56-TQFN
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 37
类型: 系统管理器
监视电压数目: 12
输出: 开路漏极,推挽式
复位: 低有效
复位超时: 可调节/可选择
电压 - 阀值: 可调节/可选择
工作温度: -40°C ~ 125°C
安装类型: 表面贴装
封装/外壳: 56-WFQFN 裸露焊盘
供应商设备封装: 56-TQFN-EP(8x8)
包装: 托盘
MAX16046/MAX16048
12-Channel/8-Channel EEPROM-Programmable
System Managers with Nonvolatile Fault Registers
DC-DC OR LDO
OUT
DC-DC OR LDO
OUT
FB
R 1
R 3
MAX16046
MAX16048
FB
R 1
R 3A
R 3B
MAX16046
MAX16048
R 2
V DACOUT_
R 2
C
V DACOUT_
V REF
Figure 15. Connections for Margining Using Feedback Method
Filtering the DAC Outputs
Some applications require filtering of the DAC outputs.
V REF
Figure 16. DACOUT Filter
Calculate the ratio of R 1 and R 2 using the following for-
mula:
? 1 + R ? =
This is especially necessary in applications that require
a large distance between the power supplies to be
margined and the MAX16046/MAX16048, or those that
require immunity to noise. A simple RC filter may be
? R 1 ?
? 2 ?
V OUT_NOM
V REF
inserted (see Figure 16).
The calculations change slightly for this configuration.
For DC margining calculations, R 3 = R 3A + R 3B . To cal-
culate the lowpass cutoff frequency, use the following
formula:
Resistors R 3 and R 4 and the reference voltage, V REF ,
may be derived from the formulas given in the DC-DC
converter data sheet where trim input functionality is
discussed. DC-DC module data sheets usually include
trim-up and trim-down formulas in the following form:
TRIM DOWN:R ADJ_DOWN ( k Ω ) = ?
R ( k Ω ) ? R ( k Ω )
f =
1
2 π R 3B C
? 1 ? Δ ?
? Δ ? ? 3 4
TRIM UP:R ADJ_UP ( k Ω ) = ?
? R 3 4 ( k Ω )
( k Ω ) ? R
? ? Δ ?
Place  resistor  R 3A and  the  capacitor,  C,  as  close  as
possible to the feedback node.
? V OUT_NOM
? V REF
? ? 1 ? Δ ?
? 1 ? ?
V OUT = ? 1 + 1 ? ?
R 3 + R 4 + R 5
?
R 2 ? ?
?
( R 4 ( k Ω ) + R 3 ( k Ω ) )
TRIM DOWN:R ADJ_DOWN ( k Ω ) = ? 3
? R ( k Ω ) × 100
Δ %
) ? ?
? V OUT_NO M ( R 3 ( k Ω ) × ( 100 + Δ % )
TRIM UP:R ADJ_UP ( k Ω ) = ?
? R 3 ( k Ω ) × 100 + ( R 4 ( k Ω ) + R 3 ( k Ω ) ) Δ % ?
? ?
? ?
Δ %
Trim Input Method
To connect the MAX16046/MAX16048 to a power sup-
ply using the trim input method, see Figure 17.
Calculate the output voltage, V OUT , as follows:
? R ? ? R 3 V DACOUT_ + (R 4 + R 5 )V REF ?
?
where V REF is the reference voltage of the power sup-
ply; R 1 , R 2 , R 3 , and R 4 are resistors internal to the
power supply; R 5 is an optional series resistor connect-
ing the trim input to the DACOUT_ output; and
V DACOUT_ is the output voltage of the DACOUT_ output.
Maxim Integrated
where Δ is the fraction of the total correction.
Another form of trim-up and trim-down formulas may
appear as follows:
?
?
? ?
? V REF Δ % ?
? ? ?
59
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MAX16046ATN+ 功能描述:监控电路 12Ch EEPROM Prob System Manager RoHS:否 制造商:STMicroelectronics 监测电压数: 监测电压: 欠电压阈值: 过电压阈值: 输出类型:Active Low, Open Drain 人工复位:Resettable 监视器:No Watchdog 电池备用开关:No Backup 上电复位延迟(典型值):10 s 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UDFN-6 封装:Reel
MAX16046ATN+T 功能描述:监控电路 12Ch EEPROM Prob System Manager RoHS:否 制造商:STMicroelectronics 监测电压数: 监测电压: 欠电压阈值: 过电压阈值: 输出类型:Active Low, Open Drain 人工复位:Resettable 监视器:No Watchdog 电池备用开关:No Backup 上电复位延迟(典型值):10 s 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UDFN-6 封装:Reel
MAX16046ECB+ 功能描述:监控电路 12Ch EEPROM Prob System Manager RoHS:否 制造商:STMicroelectronics 监测电压数: 监测电压: 欠电压阈值: 过电压阈值: 输出类型:Active Low, Open Drain 人工复位:Resettable 监视器:No Watchdog 电池备用开关:No Backup 上电复位延迟(典型值):10 s 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UDFN-6 封装:Reel
MAX16046ECB+T 功能描述:监控电路 12Ch EEPROM Prob System Manager RoHS:否 制造商:STMicroelectronics 监测电压数: 监测电压: 欠电压阈值: 过电压阈值: 输出类型:Active Low, Open Drain 人工复位:Resettable 监视器:No Watchdog 电池备用开关:No Backup 上电复位延迟(典型值):10 s 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UDFN-6 封装:Reel
MAX16046ETN+ 功能描述:监控电路 12Ch EEPROM Prob System Manager RoHS:否 制造商:STMicroelectronics 监测电压数: 监测电压: 欠电压阈值: 过电压阈值: 输出类型:Active Low, Open Drain 人工复位:Resettable 监视器:No Watchdog 电池备用开关:No Backup 上电复位延迟(典型值):10 s 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UDFN-6 封装:Reel